Mercurial > libervia-web
annotate libervia.tac @ 44:2744dd31e8a5
server side: Session management refactoring
- Session is now managed in a more twisted-like way
- Session time out managed
- Session can now be locked, preventing for expiration
- Session is locked when the getSignal request is active, preventing from expiration when the user has the page open but do nothing
| author | Goffi <goffi@goffi.org> |
|---|---|
| date | Wed, 25 May 2011 14:24:41 +0200 |
| parents | 7782a786b2f0 |
| children | 7f106052326f |
| rev | line source |
|---|---|
| 0 | 1 #!/usr/bin/python |
| 2 # -*- coding: utf-8 -*- | |
| 3 | |
| 4 """ | |
| 5 Libervia: a Salut à Toi frontend | |
| 6 Copyright (C) 2011 Jérôme Poisson (goffi@goffi.org) | |
| 7 | |
| 8 This program is free software: you can redistribute it and/or modify | |
| 9 it under the terms of the GNU Affero General Public License as published by | |
| 10 the Free Software Foundation, either version 3 of the License, or | |
| 11 (at your option) any later version. | |
| 12 | |
| 13 This program is distributed in the hope that it will be useful, | |
| 14 but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 16 GNU Affero General Public License for more details. | |
| 17 | |
| 18 You should have received a copy of the GNU Affero General Public License | |
| 19 along with this program. If not, see <http://www.gnu.org/licenses/>. | |
| 20 """ | |
| 21 | |
| 22 from twisted.application import internet, service | |
| 23 from twisted.internet import glib2reactor | |
| 24 glib2reactor.install() | |
| 25 from twisted.internet import reactor, defer | |
| 26 | |
| 27 from twisted.web import server | |
| 28 from twisted.web import error as weberror | |
| 29 from twisted.web.static import File | |
| 30 from twisted.web.resource import Resource | |
|
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31 from twisted.python.components import registerAdapter |
| 10 | 32 from twisted.words.protocols.jabber.jid import JID |
| 0 | 33 from txjsonrpc.web import jsonrpc |
| 34 from txjsonrpc import jsonrpclib | |
| 35 from sat_frontends.bridge.DBus import DBusBridgeFrontend,BridgeExceptionNoService | |
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36 import re |
| 36 | 37 import glob |
| 38 import os.path | |
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39 import sys |
| 10 | 40 from server_side.blog import MicroBlog |
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41 from zope.interface import Interface, Attribute, implements |
| 10 | 42 |
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43 TIMEOUT = 10 #Session's time out, after that the user will be disconnected |
| 36 | 44 LIBERVIA_DIR = "output/" |
| 45 CARDS_DIR = "cards/" | |
| 0 | 46 |
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47 class ISATSession(Interface): |
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48 profile = Attribute("Sat profile") |
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49 jid = Attribute("JID associated with the profile") |
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50 |
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51 class SATSession(object): |
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52 implements(ISATSession) |
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53 def __init__(self, session): |
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54 self.profile = None |
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55 self.jid = None |
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56 |
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57 class LiberviaSession(server.Session): |
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58 sessionTimeout = TIMEOUT |
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59 |
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60 def __init__(self, *args, **kwargs): |
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61 self.__lock = False |
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62 server.Session.__init__(self, *args, **kwargs) |
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63 |
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64 def lock(self): |
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65 """Prevent session from expiring""" |
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66 self.__lock = True |
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67 self._expireCall.reset(sys.maxint) |
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68 |
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69 def unlock(self): |
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70 """Allow session to expire again, and touch it""" |
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71 self.__lock = False |
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72 self.touch() |
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73 |
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74 def touch(self): |
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75 if not self.__lock: |
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76 server.Session.touch(self) |
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77 |
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78 |
| 0 | 79 class MethodHandler(jsonrpc.JSONRPC): |
| 80 | |
| 81 def __init__(self, sat_host): | |
| 82 jsonrpc.JSONRPC.__init__(self) | |
| 83 self.sat_host=sat_host | |
| 84 | |
| 85 def render(self, request): | |
| 1 | 86 self.session = request.getSession() |
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87 profile = ISATSession(self.session).profile |
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88 if not profile: |
| 0 | 89 #user is not identified, we return a jsonrpc fault |
| 90 parsed = jsonrpclib.loads(request.content.read()) | |
| 91 fault = jsonrpclib.Fault(0, "Not allowed") #FIXME: define some standard error codes for libervia | |
| 92 return jsonrpc.JSONRPC._cbRender(self, fault, request, parsed.get('id'), parsed.get('jsonrpc')) | |
| 93 return jsonrpc.JSONRPC.render(self, request) | |
| 19 | 94 |
| 95 def jsonrpc_getProfileJid(self): | |
| 96 """Return the jid of the profile""" | |
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97 sat_session = ISATSession(self.session) |
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98 profile = sat_session.profile |
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99 sat_session.sat_jid = JID(self.sat_host.bridge.getParamA("JabberID", "Connection", profile_key=profile)) |
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100 return sat_session.sat_jid.full() |
| 0 | 101 |
| 102 def jsonrpc_getContacts(self): | |
| 103 """Return all passed args.""" | |
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104 profile = ISATSession(self.session).profile |
| 1 | 105 return self.sat_host.bridge.getContacts(profile) |
| 20 | 106 |
| 107 def jsonrpc_setStatus(self, status): | |
| 108 """Change the status""" | |
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109 profile = ISATSession(self.session).profile |
| 20 | 110 print "new status received:", status |
| 111 self.sat_host.bridge.setPresence('', '', 0, {'':status}, profile) | |
| 112 | |
| 19 | 113 |
| 114 def jsonrpc_sendMessage(self, to_jid, msg, subject, type): | |
| 115 """send message""" | |
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116 profile = ISATSession(self.session).profile |
| 19 | 117 return self.sat_host.bridge.sendMessage(to_jid, msg, subject, type, profile) |
| 0 | 118 |
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119 def jsonrpc_sendMblog(self, raw_text): |
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120 """Parse raw_text of the microblog box, and send message consequently""" |
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121 profile = ISATSession(self.session).profile |
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122 match = re.match(r'@(.+?): *(.*$)', raw_text) |
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123 if match: |
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124 recip = match.group(1) |
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125 text = match.group(2) |
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126 if recip == '@' and text: |
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127 #This text if for the public microblog |
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128 print "Sending message to everybody" |
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129 return self.sat_host.bridge.sendPersonalEvent("MICROBLOG", {'content':text}, profile) |
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130 else: |
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131 return self.sat_host.bridge.sendGroupBlog([recip], text, profile) |
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132 |
| 20 | 133 def jsonrpc_getPresenceStatus(self): |
| 134 """Get Presence information for connected contacts""" | |
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135 profile = ISATSession(self.session).profile |
| 20 | 136 return self.sat_host.bridge.getPresenceStatus(profile) |
| 137 | |
| 19 | 138 def jsonrpc_getHistory(self, from_jid, to_jid, size): |
| 139 """Return history for the from_jid/to_jid couple""" | |
| 140 #FIXME: this method should definitely be asynchrone, need to fix it !!! | |
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141 sat_session = ISATSession(self.session) |
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142 profile = sat_session.profile |
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143 sat_jid = sat_session.jid |
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144 if not sat_jid: |
| 19 | 145 error("No jid saved for this profile") |
| 146 return {} | |
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147 if JID(from_jid).userhost() != sat_jid.userhost() and JID(to_jid).userhost() != sat_jid.userhost(): |
| 19 | 148 error("Trying to get history from a different jid, maybe a hack attempt ?") |
| 149 return {} | |
| 24 | 150 return self.sat_host.bridge.getHistory(from_jid, to_jid, size) |
| 19 | 151 |
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152 def jsonrpc_getRoomJoined(self): |
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153 """Return list of room already joined by user""" |
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154 profile = ISATSession(self.session).profile |
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155 return self.sat_host.bridge.getRoomJoined(profile) |
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156 |
| 24 | 157 def jsonrpc_launchTarotGame(self, other_players): |
| 158 """Create a room, invite the other players and start a Tarot game""" | |
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159 profile = ISATSession(self.session).profile |
| 24 | 160 self.sat_host.bridge.tarotGameLaunch(other_players, profile) |
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161 |
| 36 | 162 def jsonrpc_getTarotCardsPaths(self): |
| 163 """Give the path of all the tarot cards""" | |
| 164 return map(lambda x: x[len(LIBERVIA_DIR):],glob.glob(os.path.join(LIBERVIA_DIR,CARDS_DIR,'*_*.png'))); | |
| 165 | |
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166 def jsonrpc_tarotGameReady(self, player, referee): |
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167 """Tell to the server that we are ready to start the game""" |
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168 profile = ISATSession(self.session).profile |
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169 self.sat_host.bridge.tarotGameReady(player, referee) |
| 36 | 170 |
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171 def jsonrpc_tarotGameContratChoosed(self, player_nick, referee, contrat): |
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172 """Tell to the server that we are ready to start the game""" |
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173 profile = ISATSession(self.session).profile |
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174 self.sat_host.bridge.tarotGameContratChoosed(player_nick, referee, contrat, profile) |
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175 |
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176 def jsonrpc_tarotGamePlayCards(self, player_nick, referee, cards): |
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177 """Tell to the server that we are ready to start the game""" |
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178 profile = ISATSession(self.session).profile |
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179 self.sat_host.bridge.tarotGamePlayCards(player_nick, referee, cards, profile) |
| 36 | 180 |
| 0 | 181 class Register(jsonrpc.JSONRPC): |
| 182 """This class manage the registration procedure with SàT | |
| 183 It provide an api for the browser, check password and setup the web server""" | |
| 184 | |
| 185 def __init__(self, sat_host): | |
| 186 jsonrpc.JSONRPC.__init__(self) | |
| 187 self.sat_host=sat_host | |
| 188 self.profiles_waiting={} | |
| 189 self.request=None | |
| 190 | |
| 191 def getWaitingRequest(self, profile): | |
| 192 """Tell if a profile is trying to log in""" | |
| 193 if self.profiles_waiting.has_key(profile): | |
| 194 return self.profiles_waiting[profile] | |
| 195 else: | |
| 196 return None | |
| 197 | |
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198 def _fillMblogNodes(self, result, session): |
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199 """Fill the microblog nodes association for this session""" |
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200 session.sat_mblog_nodes = dict(result) |
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201 |
| 0 | 202 def render(self, request): |
| 203 """ | |
| 204 Render method with some hacks: | |
| 205 - if login is requested, try to login with form data | |
| 206 - except login, every method is jsonrpc | |
| 207 - user doesn't need to be authentified for isRegistered, but must be for all other methods | |
| 208 """ | |
| 209 if request.postpath==['login']: | |
| 210 return self.login(request) | |
| 211 _session = request.getSession() | |
| 212 parsed = jsonrpclib.loads(request.content.read()) | |
| 213 if parsed.get("method")!="isRegistered": | |
| 214 #if we don't call login or isRegistered, we need to be identified | |
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215 profile = ISATSession(_session).profile |
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216 if not profile: |
| 0 | 217 #user is not identified, we return a jsonrpc fault |
| 218 fault = jsonrpclib.Fault(0, "Not allowed") #FIXME: define some standard error codes for libervia | |
| 219 return jsonrpc.JSONRPC._cbRender(self, fault, request, parsed.get('id'), parsed.get('jsonrpc')) | |
| 220 self.request = request | |
| 221 return jsonrpc.JSONRPC.render(self, request) | |
| 222 | |
| 223 def login(self, request): | |
| 224 """ | |
| 225 this method is called with the POST information from the registering form | |
| 226 it test if the password is ok, and log in if it's the case, | |
| 227 else it return an error | |
| 228 @param request: request of the register formulaire, must have "login" and "password" as arguments | |
| 229 @return: A constant indicating the state: | |
| 230 - BAD REQUEST: something is wrong in the request (bad arguments, profile_key for login) | |
| 231 - AUTH ERROR: either the profile or the password is wrong | |
| 232 - ALREADY WAITING: a request has already be made for this profile | |
| 233 - server.NOT_DONE_YET: the profile is being processed, the return value will be given by self._logged or self._logginError | |
| 234 """ | |
| 235 try: | |
| 236 _login = request.args['login'][0] | |
| 237 if _login.startswith('@'): | |
| 238 raise Exception('No profile_key allowed') | |
| 239 _pass = request.args['password'][0] | |
| 240 except KeyError: | |
| 241 return "BAD REQUEST" | |
| 242 | |
| 243 _profile_check = self.sat_host.bridge.getProfileName(_login) | |
| 244 _profile_pass = self.sat_host.bridge.getParamA("Password", "Connection", profile_key=_login) | |
| 245 | |
| 246 if not _profile_check or _profile_check != _login or _profile_pass != _pass: | |
| 247 return "AUTH ERROR" | |
| 248 | |
| 249 if self.profiles_waiting.has_key(_login): | |
| 250 return "ALREADY WAITING" | |
| 251 | |
| 252 if self.sat_host.bridge.isConnected(_login): | |
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253 return self._logged(_login, request, finish=False) |
| 0 | 254 |
| 255 self.profiles_waiting[_login] = request | |
| 256 self.sat_host.bridge.connect(_login) | |
| 257 return server.NOT_DONE_YET | |
| 258 | |
| 259 def __cleanWaiting(self, login): | |
| 260 """Remove login from waiting queue""" | |
| 261 try: | |
| 262 del self.profiles_waiting[login] | |
| 263 except KeyError: | |
| 264 pass | |
| 265 | |
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266 def _logged(self, profile, request, finish=True): |
| 0 | 267 """Set everything when a user just logged |
| 268 and return "LOGGED" to the requester""" | |
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269 self.__cleanWaiting(profile) |
| 0 | 270 _session = request.getSession() |
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271 sat_session = ISATSession(_session) |
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272 if sat_session.profile: |
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273 error (_('/!\\ Session has already a profile, this should NEVER happen !')) |
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274 sat_session.profile = profile |
| 24 | 275 self.sat_host.prof_connected.add(profile) |
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276 d = defer.Deferred() |
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277 self.sat_host.bridge.getMblogNodes(profile, d.callback, d.errback) |
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278 d.addCallback(self._fillMblogNodes, _session) |
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279 if finish: |
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280 request.write('LOGGED') |
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281 request.finish() |
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282 else: |
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283 return "LOGGED" |
| 0 | 284 |
| 285 def _logginError(self, login, request, error_type): | |
| 286 """Something went wrong during loggin, return an error""" | |
| 287 self.__cleanWaiting(login) | |
| 288 return error_type | |
| 289 | |
| 290 def jsonrpc_isConnected(self): | |
| 291 _session = self.request.getSession() | |
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292 profile = ISATSession(_session).profile |
| 0 | 293 return self.sat_host.bridge.isConnected(profile) |
| 294 | |
| 295 def jsonrpc_connect(self): | |
| 296 _session = self.request.getSession() | |
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297 profile = ISATSession(_session).profile |
| 0 | 298 if self.profiles_waiting.has_key(profile): |
| 299 raise jsonrpclib.Fault('1','Already waiting') #FIXME: define some standard error codes for libervia | |
| 300 self.profiles_waiting[profile] = self.request | |
| 301 self.sat_host.bridge.connect(profile) | |
| 302 return server.NOT_DONE_YET | |
| 303 | |
| 304 def jsonrpc_isRegistered(self): | |
| 305 """Tell if the user is already registered""" | |
| 306 _session = self.request.getSession() | |
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307 profile = ISATSession(_session).profile |
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308 return bool(profile) |
| 0 | 309 |
| 310 class SignalHandler(jsonrpc.JSONRPC): | |
| 311 | |
| 312 def __init__(self, sat_host): | |
| 313 Resource.__init__(self) | |
| 314 self.register=None | |
| 315 self.sat_host=sat_host | |
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316 self.signalDeferred = {} |
| 24 | 317 self.queue = {} #XXX: gof: don't forgot to purge queue on session end |
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318 |
| 0 | 319 def plugRegister(self, register): |
| 320 self.register = register | |
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321 |
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322 def jsonrpc_getSignals(self): |
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323 """Keep the connection alive until a signal is received, then send it |
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324 @return: (signal, *signal_args)""" |
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325 _session = self.request.getSession() |
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326 profile = ISATSession(_session).profile |
| 24 | 327 if profile in self.queue: #if we have signals to send in queue |
| 328 if self.queue[profile]: | |
| 329 return self.queue[profile].pop(0) | |
| 330 else: | |
| 331 #the queue is empty, we delete the profile from queue | |
| 332 del self.queue[profile] | |
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333 _session.lock() #we don't want the session to expire as long as this connection is active |
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334 def unlock(ignore): |
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335 _session.unlock() |
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336 self.signalDeferred[profile] = defer.Deferred() |
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337 self.request.notifyFinish().addBoth(unlock) |
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338 return self.signalDeferred[profile] |
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339 |
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340 def getGenericCb(self, function_name): |
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341 """Return a generic function which send all params to signalDeferred.callback |
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342 function must have profile as last argument""" |
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343 def genericCb(*args): |
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344 profile = args[-1] |
| 24 | 345 if not profile in self.sat_host.prof_connected: |
| 346 return | |
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347 if profile in self.signalDeferred: |
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348 self.signalDeferred[profile].callback((function_name,args[:-1])) |
| 24 | 349 del self.signalDeferred[profile] |
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350 else: |
| 24 | 351 if not self.queue.has_key(profile): |
| 352 self.queue[profile] = [] | |
| 353 self.queue[profile].append((function_name, args[:-1])) | |
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354 return genericCb |
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355 |
| 0 | 356 def connected(self, profile): |
| 357 assert(self.register) #register must be plugged | |
| 358 request = self.register.getWaitingRequest(profile) | |
| 359 if request: | |
| 360 self.register._logged(profile, request) | |
| 361 | |
| 362 def connectionError(self, error_type, profile): | |
| 363 assert(self.register) #register must be plugged | |
| 364 request = self.register.getWaitingRequest(profile) | |
| 365 if request: #The user is trying to log in | |
| 366 if error_type == "AUTH_ERROR": | |
| 367 _error_t = "AUTH ERROR" | |
| 368 else: | |
| 369 _error_t = "UNKNOWN" | |
| 370 self.register._logginError(profile, request, _error_t) | |
| 371 | |
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372 def render(self, request): |
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373 """ |
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374 Render method wich reject access if user is not identified |
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375 """ |
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376 _session = request.getSession() |
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377 parsed = jsonrpclib.loads(request.content.read()) |
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378 profile = ISATSession(_session).profile |
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379 if not profile: |
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380 #user is not identified, we return a jsonrpc fault |
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381 fault = jsonrpclib.Fault(0, "Not allowed") #FIXME: define some standard error codes for libervia |
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382 return jsonrpc.JSONRPC._cbRender(self, fault, request, parsed.get('id'), parsed.get('jsonrpc')) |
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383 self.request = request |
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384 return jsonrpc.JSONRPC.render(self, request) |
| 0 | 385 |
| 10 | 386 |
| 0 | 387 class Libervia(service.Service): |
| 388 | |
| 389 def __init__(self): | |
| 36 | 390 root = File(LIBERVIA_DIR) |
| 0 | 391 self.signal_handler = SignalHandler(self) |
| 392 _register = Register(self) | |
| 393 self.signal_handler.plugRegister(_register) | |
| 394 self.sessions = {} #key = session value = user | |
| 24 | 395 self.prof_connected = set() #Profiles connected |
| 0 | 396 ## bridge ## |
| 397 try: | |
| 398 self.bridge=DBusBridgeFrontend() | |
| 399 except BridgeExceptionNoService: | |
| 400 print(u"Can't connect to SàT backend, are you sure it's launched ?") | |
| 401 sys.exit(1) | |
| 402 self.bridge.register("connected", self.signal_handler.connected) | |
| 403 self.bridge.register("connectionError", self.signal_handler.connectionError) | |
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404 for signal_name in ['presenceUpdate', 'personalEvent', 'newMessage', 'roomJoined', 'roomUserJoined', 'roomUserLeft', 'tarotGameStarted', 'tarotGameNew', |
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405 'tarotGameChooseContrat', 'tarotGameShowCards', 'tarotGameInvalidCards', 'tarotGameCardsPlayed', 'tarotGameYourTurn', 'tarotGameScore']: |
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406 self.bridge.register(signal_name, self.signal_handler.getGenericCb(signal_name)) |
| 10 | 407 root.putChild('json_signal_api', self.signal_handler) |
| 408 root.putChild('json_api', MethodHandler(self)) | |
| 409 root.putChild('register_api', _register) | |
| 410 root.putChild('blog', MicroBlog(self)) | |
| 411 root.putChild('css', File("server_css/")) | |
| 412 self.site = server.Site(root) | |
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413 self.site.sessionFactory = LiberviaSession |
| 0 | 414 |
| 415 def startService(self): | |
| 416 reactor.listenTCP(8080, self.site) | |
| 1 | 417 |
| 0 | 418 def run(self): |
| 419 reactor.run() | |
| 420 | |
| 421 def stop(self): | |
| 422 reactor.stop() | |
| 423 | |
| 424 | |
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425 registerAdapter(SATSession, server.Session, ISATSession) |
| 0 | 426 application = service.Application('Libervia') |
| 427 service = Libervia() | |
| 428 service.setServiceParent(application) |